* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f7fa;
    color: #333;
}

.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: #667eea;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-user span {
    font-weight: 500;
    color: #555;
}

.logout-btn {
    background: #e74c3c;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.3s ease;
}

.logout-btn:hover {
    background: #c0392b;
}

.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.welcome-section {
    text-align: center;
    margin-bottom: 3rem;
}

.welcome-section h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: #7f8c8d;
    font-size: 1.2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-content h3 {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.stat-content p {
    color: #2c3e50;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.action-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.action-btn {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    padding: 1.5rem;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.action-btn:hover {
    background: #667eea;
    color: white;
    border-color: #667eea;
    transform: translateY(-2px);
}

.action-btn i {
    font-size: 2rem;
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .main-content {
        padding: 0 1rem;
    }
    
    .welcome-section h1 {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}